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Discussion Starter · #1 ·
Wassup yall,
If I get 15" rims and wrap them with some 215 wide rubber would that be ok? or do I have to go with only 205?, and what sidewall height should I get 55 or 60?, would the odometer be off? and by how much which way? Thanks for everything guys,
Juan C. C.

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formerly known as JCGator42, 2k1 Nissan Sentra SE w/PP mods: Custom Aluminum Mesh Front Grille by Myself, Cold Air Intake by Hotshot, and Stromung Cat-Back Exhaust, and Unorthodox Underdrive 4 pulley set(in less than 2 weeks) [email protected]
 
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That is a tough one. A 205/55 15 is the closest to the stock 195/55 16. The 215/50 15 is in the ballpark, but you will experience a lot of odometer/speedometer error. I believe it was about 6% off.

Why do you want 15's to begin with? Are you using them for drag racing, or for everyday use?


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2001 SE, P/P, 5 spd. Cloud White.
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A quick size chart for you. The first three sizes are the factory sizes. The remaining sizes are various posibilities. Sentry_styling says he has no rubbing with his 215s on 17in wheels, but I believe Russ and someone else said they had rubbing with 16' wheels. I think all of the sizes hae almost no impact on the speedo. I'm pretty sure that Missan doesn't change any of the Speedo stuff for the various sizes they release. My speed reads consistently low with the 14' wheels.

Size Sidewall Radius Diameter Circumference Revs Diff
185/65-14 4.7 in 11.7 in 23.5 in 73.7 in 859 / mile 0.0%
195/60-15 4.6 in 12.1 in 24.2 in 76.1 in 833 / mile 3.2%
195/55-16 4.2 in 12.2 in 24.4 in 76.8 in 825 / mile 4.2%
205/55-15 4.4 in 11.9 in 23.9 in 75.0 in 845 / mile 1.7%
215/50-15 4.2 in 11.7 in 23.5 in 73.7 in 860 / mile -0.0%
205/50-16 4.0 in 12.0 in 24.1 in 75.6 in 838 / mile 2.6%
215/45-16 3.8 in 11.8 in 23.6 in 74.2 in 854 / mile 0.6%
205/40-17 3.2 in 11.7 in 23.5 in 73.7 in 860 / mile -0.1%
215/40-17 3.4 in 11.9 in 23.8 in 74.7 in 848 / mile 1.3%
 

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Discussion Starter · #4 ·
thanks for the stuff JohnK you are the best!, and yes I am getting 15" rims cuz of drag racing. I don't want to have to buy separate dragging wheels when I go to the track. yeah I guess I will go with 215*50-15's on mine, I am thinking either yokohama or nitto. Thanks for all the info guys, later

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formerly known as JCGator42, 2k1 Nissan Sentra SE w/PP mods: Custom Aluminum Mesh Front Grille by Myself, Cold Air Intake by Hotshot, and Stromung Cat-Back Exhaust, and Unorthodox Underdrive 4 pulley set(in less than 2 weeks) [email protected]
 

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Just wondering, why do you need smaller rim size for dragging ?

Im asking cause I really dont know anything about drag races.

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Discussion Starter · #6 ·
the rotating ratio of the wheel is smaller, I forgot the physics equation for it, plus it will free up like 1hp to the wheels. losses of up to 5hp to the wheels have been attained when doing even a not too great of a change, from 14's with 60 sidewall height, to 17's w/40 sidewall height. They dynoed the Civic LX(stock), and it lost 3.9hp, and power/torque went down all around the powerband. That is why I am going with 15's, plus when you go lighter it is even better. I am actually probably going to get 205&50-15's just cuz the 215s prob weigh in a little more, If I can get 195's for really cheap then I will resort to that but as a last option.

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formerly known as JCGator42, 2k1 Nissan Sentra SE w/PP mods: Custom Aluminum Mesh Front Grille by Myself, Cold Air Intake by Hotshot, and Stromung Cat-Back Exhaust, and Unorthodox Underdrive 4 pulley set(in less than 2 weeks) [email protected]
 

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If you are serious about drag racing then you want slicks, not drag radials.
 

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97 Black SER said:
If you are serious about drag racing then you want slicks, not drag radials.
I'm not sure about this, but I thought you only want slicks if you are pushing around some serious power. From what I've heard, slicks can really harm your transmission during hard launches.
 

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225/50/16

Anyone know if this size will cause any obstruction/speedo difference??? 225/50/16??
 
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